Physics Valentines (And Anti-Valentines), For Those You Love (And Hate)

The staff of symmetry has created a fun set of physics-themed Valentines to share with the people you love. And because ours is a universe that contains both matter and antimatter, they've created a complementary set of anti-Valentines, for the people you love to hate. » 2/11/15 4:30pm 2/11/15 4:30pm

How Do Our Bodies Know Left From Right?

Our bodies may be (nearly) symmetrical on the outside, but our insides are a different story. Your heart, your stomach and spleen are all on the left side of your body, your liver on the right. But in one in 20,000 people, the sidedness of the organs is reversed. » 7/19/14 5:00pm 7/19/14 5:00pm

The short film "Symmetry" is an audio/visual palindrome

This is "Symmetry," a clever seven-minute short by filmmaker Yann Pineill. As its title suggests, the first and second halves of the film are mirror images of one another – a creative decision that must have required considerable planning to be pulled off as seamlessly as it is here. » 1/05/14 4:00pm 1/05/14 4:00pm

An Excerpt from Dave Goldberg's “Universe in the Rearview Mirror”

The day is finally here! My new book, The Universe in the Rearview Mirror, is being released today! Many of the topics in the book were prompted by all of the great questions from the io9 community, and I wanted to thank you again by offering you this free excerpt. » 7/11/13 11:00am 7/11/13 11:00am

Ask a Physicist ... And Win a Book!

Good news, everyone! On July 11, Dutton will be releasing my new book, The Universe in the Rearview Mirror: How Hidden Symmetries Shape Reality. But do you need to wait that long? Maybe not! » 6/06/13 9:20am 6/06/13 9:20am

Think you know all there is to know about paper snowflakes? You…

You have much to learn, dear reader. Settle in — it's arts and crafts time. Let math-craft-wunderkind Vi Hart expand your mind with this captivating tutorial on snowflakes, starflakes, and swirlflakes. » 12/14/12 3:44pm 12/14/12 3:44pm

This starfish walks on four legs, using its fifth leg as a "head"

There are a lot of things you take for granted when you have a head. One of those is the direction that you walk in. But what if you had no head? Surprisingly, no scientist had ever thought to investigate that. Until now. » 5/10/12 1:42pm 5/10/12 1:42pm

Time crystals: One of the weirdest ideas in physics

Physics is defined by its symmetries, from thermodynamics laws like the conservation of mass and energy, to the principle that the universe is basically the same all over. Symmetry can also suggest some truly bizarre ideas. One of those ideas is time crystals. » 2/20/12 12:20pm 2/20/12 12:20pm

What's the largest math proof in human history?

The longest math proof in the world has just been completed. It began in the 1970s and was worked on by 100 mathematicians. Take a look at the math equivalent of endurance running. » 9/10/11 10:30am 9/10/11 10:30am